Which is the longest river in Asia? MCQ with Answer and Explanation

Which is the longest river in Asia?

A. Ob

B. Ganga

C. Mekong

D. Yangtze

Answer: Option D

The Yangtze River is the longest river in Asia.

This question belongs to: Geography GK Physical Geography

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Question #1 Report Error

Which cold current flows along the west coast of southern Africa?

A. Benguela Current

B. Agulhas Current

C. Brazil Current

D. East Australian Current

Correct Answer: Option A

Explanation:
The Benguela Current is a cold current flowing northward along southwestern Africa.

This question belongs to: Geography GK Physical Geography

Question #2 Report Error

A caldera is:

A. A River Valley

B. A Large Volcanic Depression

C. A Glacial Deposit

D. A Coral Reef

Correct Answer: Option B

Explanation:
A caldera forms when a volcano collapses into an emptied magma chamber after a major eruption.

This question belongs to: Geography GK Physical Geography

Question #3 Report Error

Which atmospheric layer contains most artificial satellites?

A. Stratosphere

B. Troposphere

C. Exosphere

D. Mesosphere

Correct Answer: Option C

Explanation:
Many satellites orbit within the exosphere, the outermost atmospheric layer.

This question belongs to: Geography GK Physical Geography